Draw-off locking-tap.



No. 649,l04. Patanted May 8, I900. H. W. JOYCE.

DRAW-OFF LOCKING TAP.

(Applioatibn filed Mar. 1900.)

(No Model.)

FIG.1.

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UNITED STATES 'ATENT FFICE,

HORACE WILLIAM JOYCE, OF HEREFORD, ENGLAND.

DRAW-OFF LOCKING-TAP.

SPECIFICATION forming part of Letters Patent No 649,104, dated May 8,1900.

Application filed March 9, 1900- Serial No. 81068. (No model.)

To aZZ whom it may concern.-

Be it known that I, HORACE WILLIAM JOYCE, a subject of the Queen ofGreat Britain and Ireland, and a resident of Hop Market, Broad street,Hereford, in the county of Hereford, England, have invented a certainnew and useful Improvement in Draw-Olf Locking-Taps, (for which I havemade application in Great Britain, No. 10,503, dated May 18, 1899,) ofwhich the followingis aspecification.

My invention relates to an improvement in draw-off locking-taps of thekind referred to in prior patents, No. 582,394, dated May 11, 1897, andNo. 615,090, dated November 29, 1898; and the object of my presentimprovementis to simplify and improve the construction and so to reducethe cost of production of such taps. In the construction of tapsreferred to in the prior patents cited the body of the tap is in somecases (and as now generally used) screwed from the front of the caskinto a metallic bush fixed into the cask from the interior thereof, dueprovision being made for securing an efiicient tight joint between thetwo said parts.

Now according to my present improvement I do not screw the body itselfinto the bush, but I secure it therein by a screwed ring, and I mountthe inner venting-tube upon the removable tap-body.

In order that my improvements may be readily understood, I will describesame in reference to the accompanying drawings, in which Figure l is avertical section, and Fig. 2 a front elevation, of a draw-offlocking-tap embodying my improvement.

In the figures, B is the bush, screwed into or otherwise affixed to thecask from the outside, as shown, although it may be fixed from theinterior, if so arranged.

A indicates the loose body part of the tap, with liquid-passage L andair-duct D.

P is the rotary plug, adapted to be operated by locking-key K and havingliquid-passage O and air-duct D, corresponding to those in the body A.

According to my improvement the inner end of the loose body part A isprovided with a fiat or plain surface a, adapted to make a face-jointwith orwithout the aid of a washer 20, with a plain surface Z) on thefront inner side of the bush B, said joint being secured by means of aring R, screwing upon a correspondingly-screwed surface a of the bodyAand abutting rearward against studs or projections e upon the bush B.The said ring R is first placed in position at the inner end of the bushl3 and then secured by the studs or projections e afterward attached.

In fixing the body to the bush B the former is pressed forward againstthe ring R, while the latter is screwed back against the studs 6. Thusthe body A is forced strongly against the inner surface I) of the bushand a tight joint is secured with or without the aid of the washer to.

The ring R is operated by a compass-key fitting into holes such as r r,or otherwise conveniently.

The construction and arrangement of plugs, air-ducts, keyway, 850., maybe, as shown, in accordance with my former patents or otherwise; but inthe present arrangement the upwardly-projecting venting-tube V iscurved,

as shown, and attached to the removable body part A, so that it may beremoved therewith for cleaning or other purposes. The said venting-tubeand air-ducts are, as described in my prior patent, No. 615,090,available for the in- 1 jection of compressed air when such is employed,as with lager-beer in casks, to force the beer out. c

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a draw-01f locking-tap of the kind referred to the combinationwith a bush having a plain inner surface of a loose body part having acorresponding plain surface and a ring adapted to be screwed upon saidbody and abutting rearwardly against studs or projec tions on the bush,substantially as and for the purpose set forth.

2. In a draw-off locking-tap of the kind re= ferred to the combinationof a bush l3 screwed into the cask from the exterior and having a plaininner surface 1), a removable body part A having plain inner surface aadapted to make a tight joint with the aid of washer w with the surfaceI) in the bush, a ring R screwing upon said body part a and studs orpro= jections in bush B for preventing backward abutting rearwardlyagainst projections on movement of said ring, all substantially as thebush B all substantially as and for the and for the purpose set forth.purposes set forth.

3. In taps of the kind referred to the com- In witness whereof I havehereunto signed 15 5 bination of a bush 13 having a plain inner my namein the presence of two subscribing surface Z), a removable body part Ahaving a Witnesses.

plain inner surface a adapted to make a tight a T joint with the plainsurface I) in'the bush, said HORACE WILLIAM J01 body part having anair-duct D and a venting- Witnesses:

[0 tube V attached to and removable with the JOSEPH THOMAS,

body, a ring R screwing upon the body Aand FREDERICK ERNEST KYNASTON.

